Collaborate with top .NET development companies in the United States to modernize, streamline, and scale your systems through custom .NET development.
We Compiled the Best USA .Net Development Companies for You
2 Companies-Rankings updated: September 03, 2026
Each agency listed on DesignRush is assessed for industry expertise and customer testimonials are evaluated in order to provide you with a vetted selection. Certain listings represent paid partnerships.
TADApix is a full-service animation studio specializing in custom animated explainer videos, eLearning modules, and marketing content. With over a decade of experience, we help brands of all sizes from startups to Fortune 500 companies simplify complex ideas and tell powerful stories through 2D, 3D...
Top Services:
Video Production
Graphic Design
Web Design
Web Development
Logo Design
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Location
Marina del Rey, California
Number of Employees
Under 49
Average Hourly Rate
$85/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
1 Project Listed
TADApix Animated Marketing Services
Video Production
Graphic Design
Web Design
Web Development
Logo Design
Print Design
Audio Production
Creative Services
Package Design
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Appther is a software and mobile app development company creating intelligent, scalable, and user-friendly digital solutions powered by innovation and AI...
Top Services:
Mobile App Development
Software Development
AI Development
Design Services
Product Design
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Location
Signal Hill, California
Number of Employees
50 - 99
Average Hourly Rate
$22/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
1 Project Listed
Appther Services
Mobile App Development
Software Development
AI Development
Design Services
Product Design
Web Design
Web Development
Staff Augmentation
IT Services
DevOps Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Joyscore
Mybob Team
Wave
Locasto
Data sourced from the agency's DesignRush profile
Appther Reviews & Testimonials
Sharma Pk
Review from Google
4.0★
Sharma Pk's Review Sourced from Google
After searching a lot for a good mobile app development organization, we finally landed on Appther. They provided us with all the technical solutions and resources for our organization with minimal hassle. The products delivered by Appther feature best-in-class performance and an attractive design.
The mobile application was smooth and bug-free and allowed us to connect with a big pool of clients. The website was also delivered with full precision and on time. The performance and products delivered by Appther are admirable, they showed the finest class of professionalism and expertise throughout the entire process.
Pushpender Kumar
General Manager IT
A.B Sugars Ltd(Wave Group)
Akshay Choudhary
Review from Google
5.0★
Akshay Choudhary's Review Sourced from Google
One of the fastest-growing app development companies in Noida. The work environment is very good. They also initiate some fun activities which makes working with the company more fun and easy.
Akanksha Pathak
Review from Google
5.0★
Akanksha Pathak's Review Sourced from Google
It is a company that will help you boost your career. I have been working with Appther for quite a while will be going to be a part of this family for a long time. The work culture is friendly and superiors are nothing supportive. Proud to be a part of the Appther family!!
Reviews verified by DesignRush and sourced from the agency's profile
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What services does a .NET development company in the United States provide?
A .NET development company in the United States provides full-cycle custom software, website, mobile app, and cloud development using the .NET framework and ecosystem. Specifically, they offer the following:
Software audit: Analyzing the software performance, identifying issues, and creating strategies for improvements
.NET modernization: Updating the solution’s codebase, infrastructure, UI/UX design, and other functionalities to the latest standards and technologies
.NET migration: Securely transferring documents and data to a .NET software while minimizing disruption to core business processes
Cross-platform development: Crafting applications that can seamlessly function on iOS, Android, Windows, and Linux devices using a single base code
Custom APIs: Unifying systems by integrating .NET software with other apps and solutions
Enterprise solution development: Producing custom customer relationship management (CRM), finance, and inventory systems based on .NET and Windows apps
.NET consulting: Providing expert advice on optimizing the use of the .NET ecosystem and enhancing current technologies
Maintenance and support: Continuously monitoring performance, resolving issues, and updating .NET applications to ensure they remain fully functional
How much does it cost to develop a .NET solution in the United States?
On average, a .NET solution in the United States costs between $20,000 and $100,000. The final price will depend on the software type, core features and functions, project timeline, compliance requirements, and team expertise.
Here’s an estimation of .NET project costs:
Websites: $10,000-$200,000
Desktop software: $20,000-$150,000
Mobile apps: $20,000-$150,000
Enterprise solutions: $50,000-$1,000,000
Game development: $10,000-$1,000,000
eCommerce apps: $10,000-$200,000
How long does a .NET development company in the United States take to complete a project?
Typically, a .NET development company in the United States takes about 2 to 6 months to complete a project. However, the timeline will ultimately depend on project scope and complexity, development methodology (agile, waterfall, and scrum), and team size.
Below is a timeline breakdown:
Research, discovery, and design: 2-4 weeks
Development: 4-12 weeks
Testing: 2-6 weeks
Launch: 1-2 weeks
How do I choose the right USA .NET development company?
To choose the right USA .NET development company for your business, consider the following steps:
Outline project goals, timeline, budget, target users, and technical requirements
Examine the agency’s service range and technical proficiency, especially in related technologies like ASP.NET, MVC, and Web API
Identify if the agency has case studies and portfolios on projects similar to yours
Read the agency’s positive and negative client reviews to assess its customer service strengths and weaknesses
Schedule an introductory meeting and inquire about security measurements, IP rights, and development approach
Select a US .NET development company that aligns with your budget, project requirements, and company culture
Struggling to find a US .NET company? Visit our Marketplace and send your project requirements. We will match you with companies that best meet your criteria — at no cost!
How do USA .NET development companies ensure quality results?
USA .NET development companies ensure quality results by implementing a comprehensive quality assurance (QA) strategy customized to your specific business objectives. The strategy typically includes a series of tests to verify the software’s end-to-end functionality, usability, security, interoperability, and durability. It also helps ensure that the final product aligns with your business requirements and meets industry standards.
Here are some of the QA tests that US .NET development companies employ:
Unit testing: Examines the software’s individual components, including module behavior, code-level functions, and error handling
User acceptance testing: Simulates real-world usage, such as user interaction and how well the app integrates with business processes and workflows
Integration testing: Assesses how the different system components interact with each other, including how data flows and how third-party systems work together
Regression testing: Analyzes the stability and functionality of the app after a bug has been fixed